When pop-up-frames is non-nil and calendar is called a duplicate frame
is created.
To reproduce the issue do:
(setq pop-up-frames 'graphic-only)
(calendar)
from a raw emacs -Q.
This can be fixed by the following advice:
(defadvice calendar (around disable-pop-up-frames activate)
"Disable pop-up-frames while this is going on, otherwise we get
extra useless frames."
(let ((pop-up-frames 'nil))
ad-do-it))
so presumably all that is needed to fix the issue is a similar let block
inside the calendar function.
The output that generated by report-emacs-bug follows:
In GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.10.7)
of 2014-03-07 on lamiak, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11501000
System Description: Ubuntu 14.04.1 LTS
Configured using:
`configure '--build' 'x86_64-linux-gnu' '--build' 'x86_64-linux-gnu'
'--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
'--localstatedir=/var/lib' '--infodir=/usr/share/info'
'--mandir=/usr/share/man' '--with-pop=yes'
'--enable-locallisppath=/etc/emacs24:/etc/emacs:/usr/local/share/emacs/24.3/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/24.3/site-lisp:/usr/share/emacs/site-lisp'
'--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes'
'--with-x-toolkit=gtk3' '--with-toolkit-scroll-bars'
'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector
--param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall'
'LDFLAGS=-Wl,-Bsymbolic-functions -Wl,-z,relro'
'CPPFLAGS=-D_FORTIFY_SOURCE=2''
Important settings:
value of $LANG: en_GB.UTF-8
locale-coding-system: utf-8-unix
default enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
<menu> <backspace> ( s e t SPC p <backspace> ' p o
p - u p - f r a m e s SPC ' <backspace> ' g r a p h
i c - o n l y ) C-\ C-e C-g C-x C-e <down> <down> <menu>
c a l e n d a r <return> q <return> ( c a l e n d a
r ) <up> <end> <down> C-x C-e <down-mouse-1> <mouse-movement>
<mouse-movement> <drag-mouse-1> <down-mouse-1> <mouse-1>
<menu> s u b m i t <tab> <C-backspace> b u g <tab>
<tab> <switch-frame> q <switch-frame> <C-backspace>
<C-backspace> r e p <tab> <switch-frame> q <switch-frame>
o r t <tab> <return>
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
delete-backward-char: Text is read-only
Quit [2 times]
graphic-only
byte-code: End of buffer [2 times]
nil
Making completion list... [2 times]
Load-path shadows:
None found.
Features:
(shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml
mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev
gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util
mail-prsvr mail-utils help-mode mule-util cal-move cal-menu easymenu
calendar cal-loaddefs time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt
fringe tabulated-list newcomment lisp-mode register page menu-bar
rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax
facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese
tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak
czech european ethiopic indian cyrillic chinese case-table epa-hook
jka-cmpr-hook help simple abbrev minibuffer loaddefs button faces
cus-face macroexp files text-properties overlay sha1 md5 base64 format
env code-pages mule custom widget hashtable-print-readable backquote
make-network-process dbusbind dynamic-setting system-font-setting
font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs)